Truck bearing



Nov. 24, 1925- 1,562,503

s. HANSSON TRUCK BEARING- FIG. v ,7 ,I V//////////// //lz mm um Nov. 24, 192s! 1,562,503

S. HANSSON TRUCK BEARING Filed oct. 25, 1924 5 Sheets-sheet 3 Patented Nov.,

JLU

SOREN HANSSON, F B'Ufllllizt Application tiled ctobcr 25, 38241;.

To NZZ whom it may concern.'

Be it known that l, SOREN Hansson., a subject oit the King.; ot Norway, and a resin dent ot Butler, in the coiuity of Butler and State oit Pennsylvania, have invented a new and useful Improvement in llrucl Bearings; and l do hereby declare the following to be a full, clear, and exact description thereot.

My invention relates to truck bearings, and particularly to an improved torni ot antrtriction bearings, especially suitable :tor employment between the body and truck holsters of railway cars.

One object ot my invention is to provide an anti-friction bearing' which may normally occupy an intermediate position upon the bearing' surface of a truck bolster but which is provided with means .tor returning` it to normal position when it has been caused to move along' the bearing surface, through relative movement ot the body and truck holsters in a horizontal plane.

Another object ot my invention is to provide an improved term ot bearing which will not bind in operation and which may be conveniently assembled and disassembled.

ltill another object oi my invention is to simplify and improve generally the strucn ture of devices of the characterl referred to.

Some of the terms which my invention may take are shown in the accompanyinpo,- drawing' wherein 1 is a view looking' endwise ot the bolster and showing the bearing' structure in side elevation; 2 is a sectional plan view ot the device ot Fie'. 1; 3 is a view taken on the lineB-S ot' Fin'. 1; Fin; 'i is a view taken on the line 4 4 ot l; Fig. 5 is a view ot modified iorm of the structure shown in Figs. 1 to l but showing the manner in which a plurality of anti-'friction members may be mounted upon a single bolster; 6 is a side elevational view ot the device of Fie'. 5: Fig.

7 is a View, partially in plan' and partiallyV in section, of a modiiication oit' the apparatus shown in Fie'. 5: Fig". 8 is a view similar to that of Fie'. 1, but showing' a modiiied torni of bearing mounting; Fig'. 9 is a view. partially in plan and partially in section oi" the device of 8; Fig. l0 is a view taken on the line 10-10 of 9, and Fie. 11 is a view, partially in section and partially in end elevation. ot' a device similar to that of Fing. 10 but showing); bearing caps for the ends ot the spring.

Referring to Figs. l to 4, 12 indicates in Serial No. 745,931.

cross section a bearingl plate for the body bolster, upon which the car body (not shown) is adapted to he supported in the rascal nianner, and 133 represents the truck bolster that is supported upon a car truck (not shown). lt will be understood that the bearings herein described are interposed between the opposingi surfaces ot the vbody and truck holsters, adjacent' to the ends ot such holsters.

The bearing' structure proper consists ot a drop-forging 11i of general channel form that may be bolted or riveted to the bolster 13 as indicated at 1t. The bottom of the channel serves as bearing; surface tor a roller 16. the upper side oit which roller is engaged by the bearing plate 1.2, when the ear body has certain movements with relation to the truck, as well understood in the art.

rllhe 'flanges or side portions ot the member 14- are provided with recesses or slots 17 whose lower walls are inclined iirom their ends towards the mid-portion thereof, as indicated at 18 in 1. A helical spring 19 extends thi-ouch the roller 1G and its ends are supported upon Vthe inclined ways 18 when the roller assumes the position indicated in dot-ted lines in Fig. 1.v for instance. it will, be noted that the roller 16 is cut away at its centrall portion 'to provide ample clearance as between it and the spring 19 which. under certain conditions, serves as an axle ttor the roller.

llilhen. throuogh swaying; ot the car body or relative vertical nioveinent as between the car bodyY and the truck the upper bearing' plate 12 is brought into engagement with the roller 1.6 and movement of the truck on the center pin occurs while such engage ment is had.I the roller will be moved longzin tudinally of the bearingA block or housing); 11i and the spring' 19loe carried therewith. it, this movement is of sui'licient degree, the spring' will move up one pair ot inclines 18 until it is caused to assume the position shown in Fig. 4i. Upon removal of the weight from the top ot the roller 16 by up ward movement ot the plate l2, the spring will tend to elevate the roll and straighten itsel't, wl'iereupon it will roll down the inclines to the position shown in full lines in Fig'. 1. The dotted lines in Fig. 1 may be taken to illustrate the position of the roller and spring before its return movement oc curs.

The spring and the roll may be placed in a housing 14, by compressing the spring within the roller and slipping them into place through the opening in the upper side of the housing block 1%.

In Fig. 5 I, have shown an arrangement particularly suitable :tor heavy service, in that a pair of rollers 16a are provided instead of a single roller. These rollers may be mounted in a single housing or casing llla which is mounted lupon the truck plates in the Vsame manner as is the housing 14. These rollers are provided with springs 19a that lare supported Within guide-ways 17 a corresponding to the guide-Ways 17 of Figs. 1 to 4:. The bottoms of these guide-Waysare inclined from their ends toward their mid-portions as indicated at 18a. It will be obvious that the rollers 1Ga Will function in the saine manner as `do rollers 16. An opening 21 may be provided in the side of the casing 14 to vprevent accumulation of dirt or moisture Within the casing. The cage 14 may be curved slightly Aas shown 1n Fig. 5, concentrically to the center pin, to reduce the tendency of the ends of the rollers to bind against the side Walls of the housing when the truck has sw'ivelling` movement during imposition of Weight thereon.

Referring now to Fig. 7, I show a modiie'd form 'of cage or housing 14:b which has recesses 17b Whos-e bottom Walls may be parallel to the longitudinal axis of the housing 14h, but Whose side Walls 1Sb are angularly disposed. 'Springs 19b corresponding to thc springs 19 extend through the rollers 1Gb but instead of beingbent as shown in Fig. et Wehen the rollers are actuated, are compressed between the oppositely disposed anguiar surfaces 18b as Will be apparent upon inspection of Figs. 7 to 10.

The structure of Fig.. 7 di'ers from the structures of Figs. 8 to 10 in substantially lthe same respects as do Figs. 5 and 6 from Figs. -1 to 4, in that Fig. 7 shows a plural- "ity of anti-friction rollers and Figs. 8 to 10; show single-roller structures.

Fig. 11 'differs from Fig. 10 in that caps or housings 22 are provided for the spring,

to -reduce the f-friction between the spring' yand the ,side 4Walls of the housing.

It `Will be apparent that the cage or housing containing the rollers may be applied to the body bolster instead of the truck bolster and that some other element may be substituted 'for the helical spring.

TVarious other changes in detail and general arrangement-s may be made Without departing from the spirit and scope of the invention as deiined in the accompanying claims.

I claim as my invention:

l, A truck Vbearing comprising a casing, an anti-friction roller Within said casing normally adapted to seat upon the bottom thereof, inclined guide-Ways extending from the mid-portion toward each end of the casing, a yieldable member disposed transversely or the casing and extending' through said roller and having its ends disposed Within said guide-ways, the parts being' so proportioned that when the roller is deflected from normal position, the guide Ways will cause distortion of said flexible member to effect return of theroller.

2. Bearing structure comprising a casing', an anti-friction roller disposed Within said casing in position to seat upon the bottom thereof, upwardly inclined guide-Ways disposed above the bottom of said casing, a yieldabie member extending' through said roller and having' its ends positioned to roll upon said guide-Ways When the roller is moved to abnormal position, whereby the roller may be returned to normal position by the action of gravity, upon release ot' the moving torce.

3. Bearing structure comprising a casing adapted to be mounted upon a truck bolster and having an opening in its upper side, inclined guideWays in said casing, a roller in said casing, a yieldable member extending through said roller and having' its ends disposed above said guide Ways, and a bearing plate adapted to be secured to a body bolster, t-he said guideways being so positioned as to cause said member to yieldably move the roller toward said plate when in abnormal position and to cause return of the roller to normal position upon disengagement thereof' 'from the bearing plate.

ln testimony whereof I the said SomiN Hansson have hereunto set my hand.

SOREN HANSSON. 

